Nicotin-extractor and smoke-cooler for tobacco-pipes.



' No. 639,397. I Patented Dec. l9, I899.

P. JOHNSON.

NICOTIN EXTBACTOR AND SMOKE COOLER FOR'TOBADCO PIPES.

(Application fll ed Mar. 17, 1899.)

(No Model.)

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PETER JOHNSON, OF BOSTON, MASSACHUSETTS.

NICOTlN-EXTRACTOR AND SMOKE-COOLER FOR TOBACCO-PIPES.

SPECIFICATION forming part of Letters Patent No. 689,397, dated December 19, 1899. Application filed March 17, 1899. Serial No. 709,888. (No mocleL.

To all whom it may concern.-

Be it known that I, PETER JOHNSON, of DOS- ton, (Jamaica Plain,) in the county of Suffolk and State of Massachusetts, have invented certain new and useful Improvements in Nicotin-Extractors and Smoke-Coolers for Tobacco-Pipes, of which the following is a description sufficiently full, clear, and exact to enable those skilled in the'art to which it appertains or with which it is most nearly connected to make and use the same.

This invention has relation to tobacco'pipes of the kind for which Letters Patent of the United States were granted to me September 13, 1898, No. 610,757.

lVhile the means shown and described in said patent are well adapted for use in longstem pipes, they are not applicable with the same full beneficial results to short stem pipes. Hence I have devised my present invention with the object of providing shortsteln pipes with means which will serve to appreciably cool the smoke in its passage from the burning tobacco in the bowl to the smokers mouth and at the same time extract or trap the nicotin and other unconsumed poisonous substances from the smoke.

To these ends my invention consists, broadly, of a smoke-cooler and nicotin-extractor for tobacco-pipes com prising a rod or wire having a helical groove formed in its surface and extending from end to end, the said rod being provided with a collar'or ring at a suitable point intermediate of its ends.

Reference is to be had to the an n'exed drawings, and to the letters marked thereon, forming a part of this specification, the same letters designating the same parts or features, as the case may be, wherever they occur.

Of the drawings, Figure 1 is a longitudinal sectional view of a crooked short-stern tobacco pipe embodying my invention, the

cleaning-coil being omitted. Fig. 2 shows a straight short-stem pipe equipped with my invention, the stem and mouthpiece being represented in section and the cleaning-coil being shown as applied to the nicotin-extracting part of the device. Fig. 3 is a detached View of the nicotinextractor and smokecooler. Fig. 4 is a perspective view of the ring or collar forming a part'of the means shown in Fig. 3. Fig. 5 is a side and end view of a nicotin-eleaning device designed to be used in connection with the nicotin-extractor.

In the drawings, a designates the bowl of a short-stem pipe. 5 is the stem, and c is the mouthpiece. In Fig. 1 the stem and mouthpiece are shown as crooked or curved, while in Fig. 3 these parts are represented as straight.

In carrying out my invention I provide a rod cl, forming a helical groove 0 in the surface therearound, which groove extends from end to end of the rod. As herein shown, the rod 0? is made by taking a length of straight wire f, preferably of aluminium, and wrapping or coiling another wire g in a helical manner therearound, so that a substantial helical groove e is formed between the coils.

h designates a collar or. ring adapted to fit on the helioally-grooved rod d and to be soldered or otherwise affixed thereon, leaving the groove 6 open through the collar. If the collar is soldered on the rod, a removable core, as a string, mayfirst be laid into the groove, so that it may be protected against being filled by solder. After soldering is effected the core may be removed.

In boring out the smoke-hole '1; or conduit in the stem and mouthpiece of the pipe I make it just sufficiently large to admit the helically-grooved rod (Z therein, the fit being snug enough to make sure of the passage of the smoke drawn from the burning tobacco in the bowl through the helical groove and not between the sides of the rod and the conduit. The s1noke-hole t' in the stem 17 is enlarged at the point where the collar h comes when the rod is in position, so as to form a chamber j j on opposite sides of the collar, in which chambers smoke drawn into the stem of the pipe may collect outside of the helical groove in the rod (1.

I have found from experience that with a tobacco-pipe equipped with my invention the smoke in its passage from the bowl to the mouthpiece, by reason of its lengthy course through the helical groove of the rod 01, will be materially cooled and that a full draft may be contained in the stem and mouthpiece, so that one draft may be cooling in the stem while the one just drawn is being enjoyed and disposed of.

An important result gained in the use of my improvement is that the nicotin and other unconsumed substances in the tobaccosmoke are trapped in that portion extending below the collar h and no appreciable quantity escapes above the same.

Experience has shown that after considerable use of myimproved device in a pipe the rod (1 below the collar 71, will become thickly coated with nicotin and gummy substances, while the portion above the collar will be substantially free from such substances. I may provide a short coil of wire Z, with a collar on on one end thereof, which coil may be turned on the rod at below the collar h and by turning the same up and down thereon and through the collar 7t free the device from the nicotin-gum.

Instead of having the smoke pass through the collar h it may pass around the same through kerfs or slots it, cut in the periphery of the collar.

As shown, the invention can be applied to pipes having any practical form of stem, and while it has been described and illustrated as applied to short-stem pipes it is obvious that it is capable of use in long-stem pipes as well.

I propose, as has already been indicated, to make the rod d and its equipments of aluminium or other suitable material and to make the said device a thing capable of separate manufacture and sale.

Though I have described a particular way or method of manufacturing the rod d, I do not confine my invention to any particular way of making it. It-is sufficient for the purposes of my invention that the rod should be grooved to lengthen the traverse of the smoke through the stem of the pipe and be provided with a collar h or a device that will accomplish the same function.

Having thus explained the nature of the invention and described a way of constructing and using the same, though without attempting to set forth all of the forms in which it may be made or all the modes of its use, it is declared that what is claimed is 1. A nicotin-extractor consisting of a rod adapted to be inserted in the smoke-conduit of a tobacco-pipe having a groove formed in its outer surface of greater length than the length of the rod and extending from end to end thereof, and provided at a point intermediate of its ends with a collar h completely surrounding the rod, substantially as described.

2. A nicotin extractor for tobacco-pipes consisting of a rod provided on its exterior with a helical groove extending fromend to end of the rod and at a point intermediate of its ends with a collar h completely surrounding the rod, substantially as described.

The combination, with a tobacco-pipe having the smoke-conduit in its stem enlarged to form a chamberjj, of a nieotiu-extractor inserted in the smoke-conduit, said nicotinextractor consisting of a grooved rod provided with a collar, the collar extending into the said chamber and dividing it, as set forth.

4. A nicotin-extractor for tobacco-pipes consisting of a rod provided on its exterior with a helical groove, and at a point inter mediate of its ends with a collar it completely surrounding it and having a short cleaningcoil Z turned thereon, as set forth.

In testimony whereof I have signed my name to this specification, in the presence of two subscribing witnesses, this 18th day of February, A. D. 1899.

PETER JOHNSON.

Witnesses:

ARTHUR W. CROSSLEY, ANNIE J. DAILEY. 

